Yu, Wangyang, Zhuojing Ma, Xiaojun Zhai, Yuke Zhou, Weiwei Zhou, and Yuan Liu. “Modeling and Analyzing User Behavior Risks in Online Shopping Processes Based on Data-Driven and Petri-Net Methods”. Computing and Informatics 42, no. 2 (May 30, 2023): 501–524. Accessed November 22, 2024. http://147.213.75.17/ojs/index.php/cai/article/view/2023_2_501.